Thank you so much for the help.
This is an Imperial Japanese soldiers insurance policy. I found it in a Imperial Japanese soldiers helmet with a packet containing a payment voucher, Soldiers ID book, and a letter from home. Im hoping to see if it all belongs to the same man, Oohashi Takeo.
The insurance policy is so beautiful. I'm going to frame it.
Here is a scan of the underside of the helmet. Does anyone know what the two characters say?